Quiz about Grade 8 CBA Review

Question 1

Find the slope of the line that passes through the points (2, 4) and (6, 12)

Accepted Answer

2

Answer

1/2

Answer

-1/2

Answer

-2

Question 2

Find the slope of the line.

Accepted Answer

1/2

Answer

-1/2

Answer

2

Answer

-2

Question 3

Find the slope of the line that passes through
(-4, 7) and (-6, -4)

Accepted Answer

11/2

Answer

2/11

Answer

-2/11

Answer

-11/2

Question 4

What is the y-intercept in the equation y= -2x + 5

Accepted Answer

5

Answer

-2

Answer

3

Answer

Cannot be Determined

Question 5

What is the y-intercept in the equation y= -2x + 5

Accepted Answer

5

Answer

-2

Answer

3

Answer

Cannot be Determined

Question 6

What is the y-intercept of the line graphed below?

Accepted Answer

4

Answer

3<br>3

Answer

-3

Answer

4/3

Question 7

Find the slope of the line.

Accepted Answer

0

Answer

Undefined

Answer

1

Answer

-1

Question 8

Find the slope from the table:

Accepted Answer

5/-2

Answer

-2/5

Answer

5/2

Answer

2/5

Question 9

Find the slope and y-intercept of the table.

Accepted Answer

m= -4/1
b= 5

Answer

m= 5
b= -4/1

Answer

m= -1/4
b= 5

Answer

m= -4/1
b= 0

Question 10

What is the definition of function?

Accepted Answer

Every input has only ONE output

Answer

Has inputs and outputs

Answer

Inputs have different outputs every time

Answer

x-values and y-values

Question 11

Is the relation a function? Why.

Accepted Answer

No, because the x-value 11 has two y-values pair with it.

Answer

Yes, because the x-value 11 has two y-values pair with it.

Answer

Yes, because each x-value has only one y-value paired with it.

Answer

No, because each x-value has only one y-value paired with it.

Question 12

Question 12.

Accepted Answer

Not a Function

Answer

Function

Question 13

Question 13.

Accepted Answer

Not a Function

Answer

Function

Question 14

Is this mapping a function or not a function?

Accepted Answer

Not a Function

Answer

Function

Question 15

Is this mapping a function or not a function?

Accepted Answer

Function

Answer

Not a Function

Question 16

Is this table a function or not a function?

Accepted Answer

Not a Function

Answer

Function

Question 17

Is this table a function or not a function?

Accepted Answer

Function

Answer

Not a Function

Question 18

Is this set of ordered pairs a function or not a function?

Accepted Answer

Function

Answer

Not a Function

Question 19

Is this set of ordered pairs a function or not a function?

Accepted Answer

Not a function

Answer

Function

Question 20

Write an equation to represent the following situation.
You take a quiz that has two parts. Your score on the essay part is five points higher than your score on the multiple choice part. Your total score on both parts is 87.

Accepted Answer

2x + 5 = 87

Answer

x + 5 = 87

Answer

87 + x = 5

Answer

x - 5 = 87

Question 21

UPS charges $7 for the first pound, and $0.20 for each additional pound. FedEx charges $5 for the first pound and $0.30 for each additional pound. Use your equation to find out how many pounds it will take for UPS and FedEx to cost the same.

Accepted Answer

20 pounds

Answer

15 pounds

Answer

120 pounds

Answer

4 pounds

Question 22

Solve for x:
19.2 x - 15 = 7.5x + 8.4

Accepted Answer

x = 2

Answer

x = 15.3

Answer

x = 23.4

Answer

x = 0

Question 23

Solve for y:
-5 - 7y = -20y + 34

Accepted Answer

y = 3

Answer

y = 1

Answer

y = 0.67

Answer

y = 46

Question 24

At one store a trophy costs $12.50. Engraving costs $0.40 per letter. At another store, the same trophy costs $14.75 and engraving costs $0.25 per letter. Use your equation to find out how many letters will be needed in order for the 2 companies to cost the same.

Accepted Answer

15 letters

Answer

5 letters

Answer

20 letters

Answer

10 letters

Question 25

Laura scored 125 points during the first half of the basketball season.  If she needs a total of 300 points for the entire season to break the school record, how many more points will she need?

Accepted Answer

125 + p > 300

Answer

125 + p < 300

Answer

125 + p < 300

Answer

125 + p > 300

Question 26

Michael makes $10 an hour plus a weekly bonus of $50.  Which inequality could be used to find how many hours he would need to work to earn more than $400

Accepted Answer

10h + 50 > 400

Answer

10h + 50 < 400

Answer

45 > 3.00 + 0.15m

Answer

3.00 > c + 0.15

Question 27

After a down payment of $40.  How much would Brian pay each month for 12 months, if he wants to spend more than $500 on his bicycle?

Accepted Answer

12x + 40 > 500

Answer

12x + 40 < 500

Answer

12x + 40 < 500

Answer

12x + 40 > 500

Question 28

Julie bought 5 pairs of shoes and 4 blouses. The shoes were 16.50 each.  How many blouses could Julie buy if she doesn't want to spend more than $80

Accepted Answer

4b + 5(16.50) < 80

Answer

4b + 5(16.50) > 80

Answer

4b + 5(16.50) < 80

Answer

4b + 5(16.50) > 80

Question 29

What does the "b" stand for in y=mx+b?

Accepted Answer

y-intercept

Answer

slope

Answer

x-intercept

Question 30

What letter represents the slope of a line in the equation y = mx + b?

Accepted Answer

m

Answer

y

Answer

x

Answer

b

Question 31

Write the equation of the line.

Accepted Answer

y=3/5x-1

Answer

y=3/5x+1

Answer

y=5/3x+1

Answer

y=3/5x+1

Question 32

Match the graph with the equation.

Accepted Answer

y = 2/3 x - 6

Answer

y = 3/2 x - 6

Answer

y = -6x + 2/3

Answer

y = 2/3x + 6

Question 33

Johnny has to pay $15 for a large pizza and 1.50 for each topping. What is the equation to find the total amount, y, for a pizza with x, the number of toppings.

Accepted Answer

y=1.50x+15

Answer

y=1.50x

Answer

y=1.50x+15x

Answer

y=15x+1.50

Question 34

Find the rate of change.

Accepted Answer

-2 days per degree

Answer

2 days per degree

Answer

50 days per degree

Answer

7 days per degree

Question 35

A 7-inch candle burns at a rate of 2-inches per hour. Which equation represents the relationship between y, the height of the dandle in inches, and x, the number of hours the candle burns?

Accepted Answer

y=7-2x

Answer

y=2x+7

Answer

y=2-7x

Answer

y=7x+2

Question 36

Which of the following situations could be descried by the equation y=120-25x?

Accepted Answer

There are 120 gallons of water in a tank. It releases water at a rate of 25 gallons per minute

Answer

There are 120 people in the football stadium, and 25 more are entering each hour.

Answer

A plumber charges $25 for a house call and $120 per hour.

Answer

A teacher has 120 students. Her third period has 25 students

Question 37

Which equation best represents the relationship between x and y in the table shown?

Accepted Answer

y= 5x+5

Answer

y=1/5x+5

Answer

y=15x+5

Answer

y=10x+5

Question 38

Is the given table proportional? If so, what is the constant of proportionality?

Accepted Answer

Yes; 3

Answer

Yes; 1/3

Answer

Yes; 5

Answer

No

Question 39

Which of the given graphs shows a proportional relationship?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 40

What makes a graph proportional?

Accepted Answer

Linear and the line goes through the origin

Answer

Linear

Answer

The line goes through the origin

Answer

Curvy line

Question 41

The graph shows Leslie's distance from home.  At what rate is she running?

Accepted Answer

5 miles per hour

Answer

1 mile per hour

Answer

15 miles per hour

Answer

35 miles per hour

Question 42

Which of the given graphs is a direct variation?

Accepted Answer

C

Answer

A

Answer

B

Answer

D

Question 43

Is this table proportional?

Accepted Answer

Yes

Answer

No

Question 44

What value of k makes this equation true?

Accepted Answer

k = -8

Answer

k = -2

Answer

k = 8/3

Answer

k = 2

Question 45

Which statement below accurately represents the graph?

Accepted Answer

$500 is earned for every 8 hours worked

Answer

$100 is earned for each hour worked

Answer

$100 is earned for every 2 hours worked

Answer

$200 is earned for every 3 hours worked

Question 46

Question 46.

Accepted Answer

A

Answer

B

Answer

C

Answer

D

Question 47

.141414141414...

Accepted Answer

Rational

Answer

Irrational

Answer

real

Answer

fake

Question 48

What type of association does this scatter plot represent?

Accepted Answer

no association

Answer

positive linear association

Answer

negative linear association

Answer

nonlinear association

Question 49

What type of association (correlation) does this graph have?

Accepted Answer

negative

Answer

positive

Answer

none

Answer

all of the above

Question 50

About how many male math teachers were there in 2006?

Accepted Answer

35

Answer

15

Answer

30

Answer

45

Question 51

Which best describes the form of this scatterplot?

Accepted Answer

nonlinear

Answer

linear

Answer

scattered

Question 52

Question 52.

Accepted Answer

8 years

Answer

1 year

Answer

3 years

Answer

6 years

Question 53

Question 53.

Accepted Answer

95

Answer

85

Answer

100

Answer

90

Question 54

Question 54.

Accepted Answer

14 cm

Answer

5.6 cm

Answer

10 cm

Answer

17.5 cm

Question 55

The following scatter plot shows Pam's training as she prepares to run a 6 mile race at the end of the month. Which of the following would be a reasonable approximation for the length of time it would take for her to run 6 miles?

Accepted Answer

D. 60 min

Answer

A. 50 min

Answer

B. 80 min

Answer

C. 45 min

Grade 8 CBA Review

60 questions

Find the slope of the line that passes through the points (2, 4) and (6, 12)

Find the slope of the line.

Find the slope of the line that passes through
(-4, 7) and (-6, -4)

What is the y-intercept in the equation y= -2x + 5

What is the y-intercept in the equation y= -2x + 5

What is the y-intercept of the line graphed below?

Find the slope of the line.

Find the slope from the table:

Find the slope and y-intercept of the table.

What is the definition of function?

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Grade 8 CBA Review

60 questions

Find the slope of the line that passes through the points (2, 4) and (6, 12)

Find the slope of the line.

Find the slope of the line that passes through (-4, 7) and (-6, -4)

What is the y-intercept in the equation y= -2x + 5

What is the y-intercept in the equation y= -2x + 5

What is the y-intercept of the line graphed below?

Find the slope of the line.

Find the slope from the table:

Find the slope and y-intercept of the table.

What is the definition of function?

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Mathematics

Find the slope of the line that passes through
(-4, 7) and (-6, -4)